docs: def line_init(xo: int, yo: int, xd: int, yd: int) -> None:
      """Initilize a line whose points will be returned by `line_step`.
  
      This function does not return anything on its own.
  
      Does not include the origin point.
  
      Args:
          xo (int): X starting point.
          yo (int): Y starting point.
          xd (int): X destination point.
          yd (int): Y destination point.
  
      .. deprecated:: 2.0
         Use `line_iter` instead.
      """
      lib.TCOD_line_init(xo, yo, xd, yd)